Texas Instruments SN74S00DRG4

Overview

SN74S00DRG4 from Texas Instruments is a quadruple 2-input positive-NAND gate IC in SOIC-14 package, operating at 4.75–5.25 V with TTL-compatible inputs (VIH = 2 V, VIL = 0.8 V), delivering 20 mA sink current and 1 mA source current, and achieving 3–5 ns propagation delay (tPLH/tPHL) at 5 V - used in logic-level signal conditioning and error-detection circuits within consumer audio systems.

For engineers reviewing the SN74S00DRG4 datasheet, SN74S00DRG4 pinout, SN74S00DRG4 application, or SN74S00DRG4 equivalent, key selection criteria include its Schottky-transistor logic (S-TTL) speed advantage over LS/standard TTL, guaranteed operation across 0°C to 70°C, SOIC-14 thermal performance (RθJA = 90.9°C/W), and compatibility with 3.3-V/2.5-V input logic levels.

Technical Context

The SN74S00DRG4 implements four independent NAND gates using bipolar Schottky-clamped transistor technology, enabling faster switching than LS-TTL while maintaining TTL voltage thresholds. Its unbalanced output drive (IOL = 20 mA, IOH = –1 mA) reflects S-TTL's optimized sinking capability for pull-down-dominated loads.

It operates strictly within 4.75–5.25 V supply range and requires external bypassing (0.1 µF near VCC); input protection limits absolute max input voltage to 5.5 V due to base-emitter junction breakdown risk, necessitating series resistors on overvoltage-prone lines per TI layout guidelines.

Key Specifications

Pinout & Package

SN74S00DRG4 uses a 14-pin SOIC (Small-Outline Integrated Circuit) package measuring 8.65 mm × 3.91 mm, with gull-wing leads, RoHS-compliant NiPdAu plating, and moisture sensitivity level (MSL) 1 (unlimited floor life at ≤30°C/60% RH).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NAND gate applications.

Compared with SN74LS00DR and SN74HC00DR, SN74S00DRG4 delivers the fastest propagation delay and highest sink current in the SN74xx00 family, making it optimal for time-critical combinatorial logic where output loading exceeds 10 LS-TTL units and 5-V-only operation is confirmed.

Availability

SN74S00DRG4 is available at Aetrix Electronics and suitable for AV receivers, Blu-Ray players, home theater systems, and portable MP3 players requiring stable component supply and long-term production continuity.

Supply support for SN74S00DRG4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, designing and manufacturing analog, embedded processing, and logic ICs for industrial, automotive, and consumer markets.

The SN74S00DRG4 belongs to TI's legacy 74S logic family, engineered specifically for high-speed digital systems needing TTL-compatible interfaces with sub-5 ns timing - targeting cost-sensitive consumer electronics where LS-TTL speed is insufficient and ECL is overkill.

FAQ

What is the maximum input voltage allowed on SN74S00DRG4 inputs?

The absolute maximum input voltage for SN74S00DRG4 is 5.5 V, as specified in the Absolute Maximum Ratings table. Exceeding this risks base-emitter junction breakdown in the input transistors. TI recommends using series current-limiting resistors on externally driven inputs, sized to restrict current to ≤1 mA under worst-case overvoltage conditions, per Section 11.1 of the datasheet.

Does SN74S00DRG4 support 3.3-V logic inputs?

Yes, SN74S00DRG4 accepts 3.3-V logic inputs reliably because its VIH threshold is 2 V minimum and VIL is 0.8 V maximum. A 3.3-V CMOS high-level output (typically ≥2.7 V) exceeds VIH, and its low-level output (≤0.4 V) stays below VIL, ensuring robust logic-level translation without level shifters in mixed-voltage 5-V systems.

What is the recommended bypass capacitor for SN74S00DRG4?

Texas Instruments specifies a 0.1 µF ceramic capacitor placed as close as possible to the VCC (Pin 14) and GND (Pin 7) pins of SN74S00DRG4. This minimizes high-frequency supply noise induced by rapid output transitions. For boards with multiple SN74S00DRG4 devices, each IC requires its own dedicated 0.1 µF capacitor; paralleling with a 1 µF bulk capacitor is acceptable but not a substitute for local placement.

Can SN74S00DRG4 drive an LED directly?

Yes, SN74S00DRG4 can drive a standard 20-mA LED directly using its 20 mA sink capability: connect the LED anode to VCC and cathode to any output (e.g., 1Y), enabling active-low illumination. Ensure forward voltage drop leaves ≥2.5 V across the output stage at IOL = 20 mA to maintain VOL ≤ 0.5 V, as verified in Electrical Characteristics Table 6.7.

Is SN74S00DRG4 pin-compatible with SN74LS00DR?

Yes, SN74S00DRG4 and SN74LS00DR share identical SOIC-14 pinouts, pin functions, and footprint dimensions (8.65 mm × 3.91 mm). Both follow the standard 74xx00 logic pin configuration: VCC (14), GND (7), and identical gate input/output assignments. However, differences in drive strength, propagation delay, and supply current require validation of timing margins and power delivery in drop-in replacements.